<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>属性</title>
    <script src="https://cdn.staticfile.org/vue/2.4.2/vue.min.js"></script>
</head>
<body>
<div id="case12-demo1">
    {{message}}
</div>
<script type="text/javascript">
    var case12Demo1=new Vue({
        el:"#case12-demo1",
        data:{
            message:"Hello World"
        },
    })
    console.log(case12Demo1.$el)
    console.log(case12Demo1.$data)
</script>
</body>
</html>